State whether the collection is well-defined or not well-defined.
{N | N is a cheerful man}

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Write each of the following numerals in base 10. for base twelve, t and e represent the face values ten and eleven, respectively. 114 base 5 89t base 12